Tractor coupling



A. WILDE.

TRACTOR COUPLING. APPLICATION FILED APR-H1922.

1,423,785. Patented Jul 25, 1922.

aw 7mm.

o stares PATENT OFFICE.

ADOLPH WILDE, 0F BELLILOWER, ILLINOIS.

'rna'c'ron COUPLING.

Specification of Letters Patent.

Patented July 25, 1922.

Application filed April 1, 1922. Serial No. 548,779.

To all whom it may concern:

Be it known that I, AnoLPH WILDE, a citizen of the United States,residing at Bell-- flower, in the county of McLean and State ofIllinois, have invented certain new and useful Improvements in TractorCouplings, of

which the following is a specification.

This invention relates to couplings es ecially adapted for connectingthe share re easing rope of a plow to the rear portion of a tractor.

Briefly stated, an important object of this invention is to provide acoupling having simple means whereby the same permits the share liftingrope of a plow to be released when the frangible driving connectionbetween the tractor and the plow is broken whereby to prevent the ropefrom being broken and also to prevent the shares of the plow from beingwithdrawn from the ground.

A further object isto provide a coupling device which may beconveniently applied to any tractor without altering the construction ofthe same. 1

A further object is to provide a coupling device which is durable inuse, of highly simplified construction, and cheap to manufacture.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawing}: 4 a Figure 1 is a side elevation of t eimproved coupling in use.

Figure 2 1s a longitudinal sectional view through the coupling.

Figure 3 is a fragmentary side elevation of the coupling.

In the drawing the numeral 5 generally designates a tractor of anydesired type and which is provided with the usual drawbar cap 6 to whichthe draft pole 7 of the plow 8 is connected by means of a frangible pm9. As is well'zknown, when the load exceeds a pre-determined point asthe result of the shares 10 encountering an obstruction, suchas a rockor stump, the frangible pin 9 is broken whereby to release the plow fromthe tractor- However, when the frangible pin 9 is broken the shareoperating rope 12 is'u'nder ordinary circumstances caused to release theshares 10 and is in some cases broken so that a new rope must besupplied. In carrying out the invention the. same is provided with novelmeans whereby the rope '12 or other with each other while the rearportions-of the arms diverge and have connectlon with a'pair of ropeengaging arms 25 by means of hinge pins 26. With reference to Figure 2,it will be seen that the arms 25 are horizontally hinged to the bracket20 and have their intermediate portions formed with sockets 28 arrangedin opposed relation. to each other for the reception of the knot 29 ofthe rope 12.

When the knot 29 is arranged in the opposed sockets 28 the rope 12 isdetachably connected to the bracket and when the strain exceeds apre-determined oint, the arms will be separated to permit 0 .thewithdrawal of the knot 29. The portions of the arms 25 rearwardly of thesockets 28 flatly contact with the rope and thereby aid in holding theknot 29 in the sockets.

The arms 25 are urged toward each other by means of a pair of coilsprings 30 mounted; on a bolt 31 passed throughopenings 32 in the armsand a nut 34 is threaded on the terminal portion of the bolt to securethe coil springs 30 of which there are two in position. It will be seenthat the nut 34 may be adjusted .on the bolt 31 for regulating thetension of the coil springs 30. A spacing element inthe nature of acollar 36 is mounted on the bolt 31 and serves to maintain the arms 25in spaced relation at all times.

As illustrated in Figure 2, the rear terminal portions of the arms 25are flared outwardly as indicated at 40 so as to present a roundedsurface to the rope.

In operationthe knot 29 is arranged in the opposed sockets 28 and thefrangible pin 9 is employed to connect the drawbar 7 to the.

the tractor to beagain connected to the plow in a highly convenient andexpeditious manner. p

I claim 1. A plow rope coupling device for tractors comprising abracket, a pair of arms horizontally hinged to said bracket and havingtheir intermediate portions formed with sockets adapted for thereception of the knot formed on one end of the plow rope, said armsbeing provided with aligned openings, a bolt. passed through saidopenings, coil springs mounted on said bolt on opposite sides of saidarms and constituting a means to urge the arms together whereby tosecurely engage the knot on the rope, and. a nut threaded on said boltand constituting a means whereby to regulate the tension of saidsprings.

2. A plow rope coupling device for tractors comprising a bracket, a pairof arms horizontally hinged to said bracket and having theirintermediate portions formed with sockets adapted for the reception ofthe knot formed on one end of the plow rope, said arms being providedwith aligned openings, a bolt passed through said openings, coil springsmounted on said bolt on opposite sides of said arms and constituting ameans portions formed with sockets adapted for the reception of the knotformed on one end of the plow rope, a bolt passing through said secondpair of arms, springs mounted on said bolt for urging said second pairof arms together, means mounted on said bolt for regulating the tensionof said springs, and a spacing collar mounted on said bolt between saidsecond pair of arms.

In testimony whereof, I have afiixed my signature in the presence of twowitnesses.

ADOLPH WILDE.

Witnesses:

J. E. SMITH, ERNST WILDE.

